Chad Kroeger relieved to speak about Avril Lavigne

Chad Kroeger is relieved Avril Lavigne has revealed her battle with Lyme disease.

The 30-year-old singer was left bedridden for five months when she was struck down with the infectious disease, which is caused by tick bites, last month and her husband is pleased he no longer has to "hide" her problem.

He told Australian radio station KIIS FM: "I'm like, 'OK, the wife has come out and said this, and now I don't have to keep hiding.'